This change in values must begins with education. With good, proper and sane education, everyone can understand the principles.. This is one planet, we are one speicies, and must change our personal value to be able to acheive changes that will allow humanity to survive the long run !
I'm gonna be a bit provocative here, but here I go:
Why do you care so much about humanity surviving in the long run?? You will probably be dead anyway.
For instance, there is a serious hypothesis that decline of fertility might worsen in coming centuries so that humanity might vanish "peacefully". Is that really a bad thing? Nothing is supposed to be eternal.
Reminds me of the Green Day song Armitage Shanks...
Or any black metal. I can relate!
But, as imperfect as humanity may be, it CAN be viewed as a step toward something much better. Would you rather advance directly to that step, or start all over again? I know, i know -- it doesn't matter to any single individual... But apparently it does.
Are you familiar with Tipler's Omega Point Theory?